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File Name : index.subr

if [ ! "$_PACKAGES_INDEX_SUBR" ]; then _PACKAGES_INDEX_SUBR=1
#
# Copyright (c) 2013-2016 Devin Teske
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
#
############################################################ INCLUDES

BSDCFG_SHARE="/usr/share/bsdconfig"
. $BSDCFG_SHARE/common.subr || exit 1
f_dprintf "%s: loading includes..." packages/index.subr
f_include $BSDCFG_SHARE/device.subr
f_include $BSDCFG_SHARE/media/common.subr
f_include $BSDCFG_SHARE/packages/musthavepkg.subr
f_include $BSDCFG_SHARE/strings.subr

BSDCFG_LIBE="/usr/libexec/bsdconfig"
f_include_lang $BSDCFG_LIBE/include/messages.subr

############################################################ GLOBALS

PACKAGE_INDEX=
_INDEX_INITTED=

#
# Default path to pkg(8) repo-packagesite.sqlite database
#
SQLITE_REPO="/var/db/pkg/repo-FreeBSD.sqlite"

#
# Default path to on-disk cache INDEX file
#
PACKAGES_INDEX_CACHEFILE="/var/run/bsdconfig/packages_INDEX.cache"

############################################################ FUNCTIONS

# f_index_initialize [$var_to_set]
#
# Read and initialize the global index. Returns success unless media cannot be
# initialized for any reason (e.g. user cancels media selection dialog or an
# error occurs). The index is sorted before being loaded into $var_to_set.
#
# NOTE: The index is processed with f_index_read() [below] after being loaded.
#
f_index_initialize()
{
	local __funcname=f_index_initialize
	local __var_to_set="${1:-PACKAGE_INDEX}"

[ "$_INDEX_INITTED" ] && return $SUCCESS

# Got any media?
	f_media_verify || return $FAILURE

# Make sure we have a usable pkg(8) with $PKG_ABI
	f_musthavepkg_init

# Does it move when you kick it?
	f_device_init device_media || return $FAILURE

f_show_info "$msg_attempting_to_update_repository_catalogue"

#
	# Generate $PACKAGESITE variable for pkg(8) based on media type
	#
	local __type __data __site
	device_media get type __type
	device_media get private __data
	case "$__type" in
	$DEVICE_TYPE_DIRECTORY)
		__site="file://$__data/packages/$PKG_ABI" ;;
	$DEVICE_TYPE_FLOPPY)
		__site="file://${__data:-$MOUNTPOINT}/packages/$PKG_ABI" ;;
	$DEVICE_TYPE_FTP)
		f_getvar $VAR_FTP_PATH __site
		__site="$__site/packages/$PKG_ABI" ;;
	$DEVICE_TYPE_HTTP)
		f_getvar $VAR_HTTP_PATH __site
		__site="$__site/$PKG_ABI/latest" ;;
	$DEVICE_TYPE_HTTP_PROXY)
		f_getvar $VAR_HTTP_PROXY_PATH __site
		__site="$__site/packages/$PKG_ABI" ;;
	$DEVICE_TYPE_CDROM)
		__site="file://$MOUNTPOINT/packages/$PKG_ABI"
		export REPOS_DIR="$MOUNTPOINT/packages/repos" ;;
	*) # UFS, DISK, CDROM, USB, DOS, NFS, etc.
		__site="file://$MOUNTPOINT/packages/$PKG_ABI"
	esac

f_dprintf "PACKAGESITE=[%s]" "$__site"
	if ! f_eval_catch $__funcname pkg \
		'PACKAGESITE="%s" pkg update' "$__site"
	then
		f_show_err "$msg_unable_to_update_pkg_from_selected_media"
		f_device_shutdown device_media
		return $FAILURE
	fi

#
	# Try to get contents from validated on-disk cache
	#

#
	# Calculate digest used to determine if the on-disk persistent cache
	# INDEX (containing this digest on the first line) is valid and can be
	# used to quickly populate the environment.
	#
	local __sqlite_digest
	if ! __sqlite_digest=$( md5 < "$SQLITE_REPO" 2> /dev/null ); then
		f_show_err "$msg_no_pkg_database_found"
		f_device_shutdown device_media
		return $FAILURE
	fi

#
	# Check to see if the persistent cache INDEX file exists
	#
	if [ -f "$PACKAGES_INDEX_CACHEFILE" ]; then
		#
		# Attempt to populate the environment with the (soon to be)
		# validated on-disk cache. If validation fails, fall-back to
		# generating a fresh cache.
		#
		if eval $__var_to_set='$(
			(	# Get digest as the first word on first line
				read digest rest_ignored

#
				# If the stored digest matches the calculated-
				# one populate the environment from the on-disk
				# cache and provide success exit status.
				#
				if [ "$digest" = "$__sqlite_digest" ]; then
					cat
					exit $SUCCESS
				else
					# Otherwise, return the current value
					eval echo \"\$__var_to_set\"
					exit $FAILURE
				fi
			) < "$PACKAGES_INDEX_CACHEFILE" 2> /dev/null
		)'; then
			if ! f_index_read "$__var_to_set"; then
				f_show_err \
					"$msg_io_or_format_error_on_index_file"
				return $FAILURE
			fi
			_INDEX_INITTED=1
			return $SUCCESS
		fi
		# Otherwise, fall-thru to create a fresh cache from scratch
	fi

#
	# If we reach this point, we need to generate the data from scratch
	#

eval "$__var_to_set"='$( pkg rquery -I | (
		exec 2<&1; dpv -ko /dev/stderr >&$TERMINAL_STDOUT_PASSTHRU \
			-b "$DIALOG_BACKTITLE" \
			-- "$msg_generating_index_from_pkg_database"
	) | sort )'

#
	# Attempt to create the persistent on-disk cache
	#

# Create a new temporary file to write to
	local __tmpfile
	if f_eval_catch -dk __tmpfile $__funcname mktemp \
		'mktemp -t "%s"' "$pgm"
	then
		# Write the temporary file contents
		echo "$__sqlite_digest" > "$__tmpfile"
		debug= f_getvar "$__var_to_set" >> "$__tmpfile"

# Finally, move the temporary file into place
		case "$PACKAGES_INDEX_CACHEFILE" in
		*/*) f_eval_catch -d $__funcname mkdir \
			'mkdir -p "%s"' "${PACKAGES_INDEX_CACHEFILE%/*}"
		esac
		f_eval_catch -d $__funcname mv 'mv -f "%s" "%s"' \
			"$__tmpfile" "$PACKAGES_INDEX_CACHEFILE"
	fi

if ! f_index_read "$__var_to_set"; then
		f_show_err "$msg_io_or_format_error_on_index_file"
		return $FAILURE
	fi

_INDEX_INITTED=1
	return $SUCCESS
}

# f_index_read [$var_to_get]
#
# Process the INDEX file (contents contained in $var_to_get) and...
#
# 1. create a list ($CATEGORY_MENU_LIST) of categories with package counts
# 2. For convenience, create $_npkgs holding the total number of all packages
# 3. extract associative categories for each package into $_categories_$varpkg
# 4. extract runtime dependencies for each package into $_rundeps_$varpkg
# 5. extract a [sorted] list of categories into $PACKAGE_CATEGORIES
# 6. create $_npkgs_$varcat holding the total number of packages in category
#
# NOTE: $varpkg is the product of f_str2varname $package varpkg
# NOTE: $package is the name as it appears in the INDEX (no archive suffix)
# NOTE: We only show categories for which there are at least one package.
# NOTE: $varcat is the product of f_str2varname $category varcat
#
f_index_read()
{
	local var_to_get="${1:-PACKAGE_INDEX}"

# Export variables required by awk(1) below
	export msg_no_description_provided
	export msg_all msg_all_desc
	export VALID_VARNAME_CHARS
	export msg_packages

eval "$( debug= f_getvar "$var_to_get" | awk -F'|' '
	function _asorti(src, dest)
	{
		k = nitems = 0

# Copy src indices to dest and calculate array length
		for (i in src) dest[++nitems] = i

# Sort the array of indices (dest) using insertion sort method
		for (i = 1; i <= nitems; k = i++)
		{
			idx = dest[i]
			while ((k > 0) && (dest[k] > idx))
			{
				dest[k+1] = dest[k]
				k--
			}
			dest[k+1] = idx
		}

return nitems
	}
	function print_category(category, npkgs, desc)
	{
		cat = category
		# Accent the category if the first page has been
		# cached (also acting as a visitation indicator)
		if ( ENVIRON["_index_page_" varcat "_1"] )
			cat = cat "*"
		printf "'\''%s'\'' '\''%s " packages "'\'' '\''%s'\''\n",
		       cat, npkgs, desc
	}
	BEGIN {
		valid_chars = ENVIRON["VALID_VARNAME_CHARS"]
		default_desc = ENVIRON["msg_no_description_provided"]
		packages = ENVIRON["msg_packages"]
		tpkgs = 0
		prefix = ""
	}
	{
		tpkgs++
		varpkg = $1
		gsub("[^" valid_chars "]", "_", varpkg)
		print "_categories_" varpkg "=\"" $7 "\""
		split($7, pkg_categories, /[[:space:]]+/)
		for (pkg_category in pkg_categories)
			categories[pkg_categories[pkg_category]]++
		print "_rundeps_" varpkg "=\"" $9 "\""
	}
	END {
		print "_npkgs=" tpkgs # For convenience, total package count

n = _asorti(categories, categories_sorted)

# Produce package counts for each category
		for (i = 1; i <= n; i++)
		{
			cat = varcat = categories_sorted[i]
			npkgs = categories[cat]
			gsub("[^" valid_chars "]", "_", varcat)
			print "_npkgs_" varcat "=\"" npkgs "\""
		}

# Create menu list and generate list of categories at same time
		print "CATEGORY_MENU_LIST=\""
		print_category(ENVIRON["msg_all"], tpkgs,
		               ENVIRON["msg_all_desc"])
		category_list = ""
		for (i = 1; i <= n; i++)
		{
			cat = varcat = categories_sorted[i]
			npkgs = categories[cat]
			cur_prefix = tolower(substr(cat, 1, 1))
			if ( prefix != cur_prefix )
				prefix = cur_prefix
			else
				cat = " " cat
			gsub("[^" valid_chars "]", "_", varcat)
			desc = ENVIRON["_category_" varcat]
			if ( ! desc ) desc = default_desc
			print_category(cat, npkgs, desc)
			category_list = category_list " " cat
		}
		print "\""

# Produce the list of categories (calculated in above block)
		sub(/^ /, "", category_list)
		print "PACKAGE_CATEGORIES=\"" category_list "\""

}' | ( exec 2<&1; dpv -ko /dev/stderr >&$TERMINAL_STDOUT_PASSTHRU \
		-b "$DIALOG_BACKTITLE" -- "$msg_reading_package_index_data"
	) )" # End-Quote
}

# f_index_extract_pages $var_to_get $var_basename $pagesize [$category]
#
# Extracts the package INDEX ($PACKAGE_INDEX by default if/when $var_to_get is
# NULL; but should not be missing) into a series of sequential variables
# corresponding to "pages" containing up to $pagesize packages. The package
# INDEX data must be contained in the variable $var_to_get. The extracted pages
# are stored in variables ${var_basename}_# -- where "#" is a the page number.
# If $category is set, only packages for that category are extracted.
# Otherwise, if $category is "All", missing, or NULL, all packages are
# extracted and no filtering is done.
#
f_index_extract_pages()
{
	local var_to_get="${1:-PACKAGE_INDEX}" var_basename="$2" pagesize="$3"
	local category="$4" # Optional

eval "$(
		debug= f_getvar "$var_to_get" | awk -F'|' \
			-v cat="$category" \
			-v pagesize="$pagesize" \
			-v var_basename="$var_basename" \
			-v i18n_all="$msg_all" '
		BEGIN { n = page = 0 }
		/'\''/{ gsub(/'\''/, "'\''\\'\'\''") }
		{
			if ( cat !~ "(^$|^" i18n_all "$)" && $7 !~ \
			     "(^|[[:space:]])" cat "([[:space:]]|$)" ) next
			starting_new_page = (n++ == (pagesize * page))
			if ( starting_new_page )
				printf "%s%s", ( n > 1 ? "'\''\n" : "" ),
				       var_basename "_" ++page "='\''"
			printf "%s%s", ( starting_new_page ? "" : "\n" ), $0
		}
		END { if ( n > 0 ) print "'\''" }'
	)"
}

# f_index_search $var_to_get $name [$var_to_set]
#
# Search the package INDEX ($PACKAGE_INDEX by default if/when $var_to_get is
# NULL; but should not be missing) for $name, returning the first match.
# Matches are strict (not regular expressions) and must match the beginning
# portion of the package name to be considered a match. If $var_to_set is
# missing or NULL, output is sent to standard output. If a match is found,
# returns success; otherwise failure.
#
f_index_search()
{
	local __var_to_get="${1:-PACKAGE_INDEX}" __pkg_basename="$2"
	local __var_to_set="$3"

f_dprintf "f_index_search: Searching package data (in %s) for %s" \
	          "$__var_to_get" "$__pkg_basename"

local __pkg=
	__pkg=$( debug= f_getvar "$__var_to_get" |
			awk -F'|' -v basename="$__pkg_basename" '
		BEGIN { n = length(basename) }
		substr($1, 0, n) == basename { print $1; exit }
	' )
	if [ ! "$__pkg" ]; then
		f_dprintf "f_index_search: No packages matching %s found" \
		          "$__pkg_basename"
		return $FAILURE
	fi

f_dprintf "f_index_search: Found package %s" "$__pkg"
	if [ "$__var_to_set" ]; then
		setvar "$__var_to_set" "$__pkg"
	else
		echo "$__pkg"
	fi
	return $SUCCESS
}

############################################################ MAIN

f_dprintf "%s: Successfully loaded." packages/index.subr

fi # ! $_PACKAGES_INDEX_SUBR

System Information
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File : BlackDragon /hide.php

Name	Type	Size	Owner/Group	Permission	Last Modified	Actions
.	dir	-	0/0	0755	2024-04-03 10:33:46
..	dir	-	0/0	0755	2024-04-03 10:33:46
categories.subr	text/plain	8.12 KB	0/0	0444	2024-04-03 10:33:46
index.subr	text/plain	12.61 KB	0/0	0444	2024-04-03 10:33:46
musthavepkg.subr	text/plain	3.22 KB	0/0	0444	2024-04-03 10:33:46
packages.subr	text/plain	35.91 KB	0/0	0444	2024-04-03 10:33:46